The Donald Trump administration has released numerous files about reported UFO sightings as well as bizarre claims and reports about the surface of the Moon ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...